an ion
If there are 4 electrons and 4 protons, the atom is electrically neutral since the positive charges from the protons balance out the negative charges from the electrons. No electrons are lost or gained in this scenario.
Ordinarily, atoms are electrically neutral, for they have an equal number or electrons and protons. If however, some of the electrons have been stripped off, then the atom will have a nett positive charge. In this condition, it may be accelerated and steered by electrical forces. (Or magnetic forces as well.)
To make a positive ion, we need to remove one or more of the negative components from an atom. The negative charges that make up an atom are the electrons, which can be found in shells or orbitals some distance from the nucleus. Take away one or more electrons, and the protons, the positive charges that make up atoms and which hang out in the nucleus, give the atom an overall positive charge. An atom that has lost one or more electrons becomes a positive ion.
When an atom has an electric charge it is called an ion.
If it has a positive charge it is a Cation. If it has a negative charge it is an Anion.
An atom that has gained an electron becomes a negatively charged ion.
Atoms that carry an electrical charge because they gained or lost electrons are called ions. An atom that has lost electrons will be positively charged, and it is called cation. On the other hand, an atom that has gained electrons will be negatively charged, and it is called anion.
An ion
An atom that has gained or lost electrons is called an ion. If it gains electrons, it becomes a negatively charged ion (an anion), while if it loses electrons, it becomes positively charged (a cation).
an ion
Valance electron
An atom that has gained or lost electrons is called an ion. An atom that has gained one or more electrons becomes a negatively charged ion called an anion. An atom that has lost one or more electrons becomes a positively charged ion called a cation.
A cation is an atom that has lost one or more electrons. An anion is an atom that has gained one or more electrons.
Such an atom would be neutral - no electric charge.
The number of electrons lost or gained by an atom in a chemical reaction is its oxidation number. This represents the charge an atom would have if the bonding electrons were completely transferred. It helps to understand how atoms combine and react with each other.
An atom that carries an electrical charge because it has gained or lost electrons is called an "ion". An atom that has gained one or more electrons, and has a negative electrical charge, is called an "anion". An atom that has lost one or more electrons, and has a positive electrical charge, is called a "cation". The term "ion" is used to refer to both cations and anions collectively or non-specifically.
alphalpha